🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.48 AU - 0.54 AU

Year: 134 Days

Day: 38 Hours

Environment

Temp: 183 °C

Axial Tilt: 47.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 43,619,127 km

• M1: 331,958 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.73 AU - 0.81 AU

Year: 248 Days

Day: 38.9 Hours

Environment

Temp: 128 °C

Axial Tilt: 45.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.79 AU - 0.79 AU

Year: 258 Days

Day: 33.3 Hours

Environment

Temp: 104 °C

Axial Tilt: 18.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.94 AU - 1.52 AU

Year: 501 Days

Day: 30.1 Hours

Environment

Temp: -3 °C

Axial Tilt: 18.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.4 AU - 1.58 AU

Year: 668 Days

Day: 38.3 Hours

Environment

Temp: -28 °C

Axial Tilt: 85 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,619,127 km

• M1: 1,028,336 km (0.111 R)

Asteroid Belt

Center: 4.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.3

Radius: 9.1

Gravity: 11.16 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 7.24 AU - 9.32 AU

Year: 8746 Days

Day: 12.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,619,127 km

• M1: 113,246 km (0.109 R)
• M2: 471,532 km (0.103 R)
• M3: 895,792 km (0.106 R)
• M4: 1,580,950 km (0.116 R)
• M5: 2,349,285 km (0.031 R)
• M6: 2,661,795 km (0.05 R)
• M7: 3,468,427 km (0.104 R)
• M8: 3,875,782 km (0.116 R)
• M9: 5,491,439 km (0.117 R)
• M10: 11,409,680 km (0.113 R)
• M11: 11,799,233 km (0.089 R)
• M12: 13,202,461 km (0.096 R)
• M13: 13,756,272 km (0.079 R)
• M14: 14,779,222 km (0.073 R)
• M15: 15,578,973 km (0.099 R)
• M16: 24,213,463 km (0.079 R)
• M17: 25,987,693 km (0.06 R)
• M18: 26,760,067 km (0.073 R)
• M19: 28,047,506 km (0.101 R)
• M20: 30,960,177 km (0.115 R)
• M21: 33,385,757 km (0.096 R)
• M22: 36,772,802 km (0.032 R)
• M23: 37,992,025 km (0.108 R)
• M24: 38,736,274 km (0.072 R)
• M25: 46,440,265 km (0.1 R)
• M26: 47,433,894 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.6

Radius: 14

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 8.63 AU - 8.69 AU

Year: 9355 Days

Day: 9.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,619,127 km

• M1: 174,431 km (0.099 R)
• M2: 877,242 km (0.101 R)
• M3: 1,805,198 km (0.117 R)
• M4: 2,249,354 km (0.03 R)
• M5: 6,188,116 km (0.081 R)
• M6: 7,880,517 km (0.064 R)
• M7: 8,903,916 km (0.08 R)
• M8: 11,106,445 km (0.073 R)
• M9: 12,684,703 km (0.095 R)
• M10: 16,143,705 km (0.089 R)
• M11: 16,704,697 km (0.025 R)
• M12: 18,542,656 km (0.106 R)
• M13: 19,236,192 km (0.107 R)
• M14: 23,587,695 km (0.068 R)
• M15: 30,532,626 km (0.111 R)
• M16: 31,827,246 km (0.093 R)
• M17: 33,383,812 km (0.074 R)
• M18: 34,180,720 km (0.102 R)
• M19: 34,990,344 km (0.115 R)
• M20: 38,730,590 km (0.081 R)
• M21: 39,231,892 km (0.109 R)
• M22: 40,504,072 km (0.074 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.3

Radius: 13.4

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 7.95 AU - 13.17 AU

Year: 12597 Days

Day: 6.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 43,619,127 km

• M1: 166,951 km (0.082 R)
• M2: 604,525 km (0.108 R)
• M3: 1,172,548 km (0.029 R)
• M4: 1,603,839 km (0.105 R)
• M5: 2,262,369 km (0.106 R)
• M6: 2,724,476 km (0.098 R)
• M7: 3,455,412 km (0.066 R)
• M8: 4,942,115 km (0.116 R)
• M9: 5,565,639 km (0.092 R)
• M10: 6,067,390 km (0.105 R)
• M11: 7,161,998 km (0.11 R)
• M12: 8,600,980 km (0.078 R)
• M13: 9,693,942 km (0.066 R)
• M14: 10,877,261 km (0.069 R)
• M15: 11,345,203 km (0.094 R)
• M16: 13,118,836 km (0.073 R)
• M17: 15,784,520 km (0.043 R)
• M18: 19,241,278 km (0.117 R)
• M19: 21,025,981 km (0.105 R)
• M20: 24,037,386 km (0.114 R)
• M21: 27,516,584 km (0.079 R)
• M22: 33,782,341 km (0.096 R)
• M23: 36,027,655 km (0.112 R)
• M24: 38,490,635 km (0.072 R)
• M25: 43,099,745 km (0.082 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 17,621 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit